BZW50-68 Circuit Protection

TVS (Transient Voltage Suppressor) diodes, also referred to as surge-suppressor diodes, are semiconductor devices that limit transient voltage by clamping action. These diodes are employed to protect electronic components from damage due to voltage fluctuations caused by lightning, ESD (electrostatic discharge) and other short-duration energization events. One such device is the BZW50-68.

BZW50-68 Application Fields and Working Principle

The BZW50-68 is a silicon avalanche voltage clamp with excellent stability. It is particularly useful in applications involving circuit protection, such as surge protection, ESD protection, voltage clamping protection, over-voltage protection, and general circuit protection.

The BZW50-68 features a low breakdown voltage of 5.8V, reverse standoff capacity of 500W and peak pulse current of 1.5A. It is available in a surface-mount package and offers excellent clamping capabilities. The device is also highly rugged and capable of enduring high durations of energy and high-amplitude voltage transients.

The BZW50-68 is based on a Zener diode with an integrated avalanche breakdown process. In operation, the device is designed to sense the voltage on the line and respond quickly to a sudden voltage surge. The device does this by regulating excess current and quenching the voltage surge by clamping it to a predetermined value.

The BZW50-68 is also designed to provide a controlled discharge path after the initial voltage spike, and hence prevents any further damage to the circuit it is protecting. It is also capable of dealing with multiple transient events without needing to be replaced. This makes it particularly suitable for applications that require high reliability and minimal maintenance.

The BZW50-68 is typically employed in products such as DC-DC converters, motor drives, AC-DC converters, surge protectors, data lines, safety interlocks and industrial systems. It is also employed in circuits where the breakdown voltage must remain accurate, such as temperature sensors, battery packs and digital calculators.

In summary, the BZW50-68 is a reliable voltage clamp that is designed to protect against voltage transients and ESD. It is a rugged and highly stable device that can handle multiple events without needing to be replaced. Additionally, it is suitable for a variety of applications.